and everything responsible, however this suspected radical islamist is able to go back to russia and dagestan without the fbi or cia being made aware of it even though homeland security was. i wonder if you want to comment on what senator lindsey graham is suggesting. this is a pretty blunt indictment of the obama administration's handling of these guys, these tsarnaev brothers in boston. >> i think senator graham raises very legitimate questions that require in my view congressional hearings. i've written a letter to senator carper, chairman of the homeland security committee asking for hearings on this. why is it that he left the country, tamerlan, and his -- and only the homeland security committee knew about it. he got back in without anybody knowing about it. and why did the russians feel it necessary to contact two different agencies of government and express their concern? and what were those concerns? so there's a great deal that needs to be investigated. and remember, wolf, that when we did the 9/11 commission and restructured government, one of the major objectives was to make sure